Are ticks a problem in Marin County?

There have been 7 tick reports near Marin County, CA, with 0 bites and 7 sightings. The most common species reported is the Unidentified. Check the Tick Map for the latest 2026 tick activity.

What kind of ticks are in Marin County?

The most commonly reported tick species in Marin County include Unidentified, Deer Tick. Each species carries different disease risks — see our species guide for identification help.

Tick Map

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Ticks in Marin County, CA

7 tick reports from the Marin County, CA area.

View on full interactive map

Total Reports

Sightings

Bites

Species Found in Marin County

Unidentified6 (86%)

Deer Tick1 (14%)

Risk: High — carries Lyme disease

Tick Safety in Marin County

Ticks are active in Marin County, CA and surrounding areas. The most commonly reported species is the Unidentified, making up 86% of reports.

✓Wear light-colored clothing when walking in wooded areas or tall grass
✓Use EPA-registered tick repellent (DEET, picaridin, or IR3535)
✓Do a full-body tick check after being outdoors — especially behind ears, hairline, and waistband
✓Shower within 2 hours of coming inside
✓If bitten, remove the tick with fine-tipped tweezers and monitor for symptoms for 30 days